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Sully County Map, South Dakota

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Sully County, South Dakota

Sully Location Map South Dakota

Sully County lies in central South Dakota. The Missouri River and Lake Oahe form its western border. Both are a big draw for fishermen.

The entire county is sparsely populated. Onida, the county seat, is the largest town. And it’s not very big. But what it lacks in size, it makes up for in character.

Agriculture drives the economy here. Wheat, corn, and sunflowers are common crops. The landscape is mostly flat. But it’s not boring. Sunsets here are spectacular.

CategoryDetails
County NameSully County
County SeatOnida
PopulationApproximately 1,300
Cities, Towns, and CommunitiesOnida, Agar
Interstates and HighwaysU.S. Highway 83
FIPS Code46-119
Total Area (Land and Water)1,070 square miles (1,007 sq mi land, 63 sq mi water)
Adjacent Counties (and Direction)Potter County (North), Hyde County (East), Hughes County (South), Stanley County (Southwest), Dewey County (Northwest)
Time ZoneCentral Time Zone (CST)
StateSouth Dakota
Coordinates44°44’N, 100°05’W
EtymologyNamed after Fort Sully, itself named after General Alfred Sully
Major LandmarksLake Oahe, Sully County Courthouse

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